<- All Models

GLM-5.3 (1M)

NEW

Z.ai 1M-context flagship, post-trained on the GLM-5.2 base for coding, cybersecurity and agentic work. Thinking always on, with low/high/max effort. 1M context, 128K output.

1M context·$1.40 in·$4.40 out·Aug 2026 release·Reasoning, Tools / functions

Providers

Where GLM-5.3 (1M) runs in Big-AGI, with each service's own model ID and USD-per-1M-token rates. The summary above prefers the creator's claim; rates below are each service's own.

ServiceModel IDContextInputOutputCache read

Z.ai

creator

glm-5.3

1M

$1.40

$4.40

$0.26

z-ai/glm-5.3

1.3M

$1.40

$4.40

$0.26

zai-org/GLM-5.3

1M

$1.40

$4.40

$0.26

Usage mix in Big-AGI: OpenRouter 100%Specs as reported by each service · usage over the last 2 days · refreshed hourly

Run GLM-5.3 (1M) in Big-AGI.

Connect your own key on any of the services above, at their rates, no markup - and run it side by side with every other model.

Launch Big-AGI

© 2026 Token Fabrics·Built with passion in San Diego